Assertion `0 == std::memcmp(context, &zero_context, sizeof(rmw_context_t))' failed.

[marcoag]

Bug report

Required Info:

• Operating System: Ubuntu 20.04
• Installation type: source
• Version or commit hash: foxy branch (latest)
• ROS foxy from deb binaries

Steps to reproduce issue

mkdir -p ros2_ws/src
cd ros2_ws/src
git clone https://github.com/ros2/rmw_cyclonedds ros2/rmw_cyclonedds
git clone https://github.com/eclipse-cyclonedds/cyclonedds eclipse-cyclonedds/cyclonedds
cd ros2/rmw_cyclonedds/
git checkout foxy
cd ../../..
rosdep install --from src -i
colcon build --symlink-install
source install/setup.bash
export RMW_IMPLEMENTATION=rmw_cyclonedds_cpp
ros2 run demo_nodes_cpp talker

Expected behavior

Run the node and start publishing

Actual behavior

talker: /home/marco/ros2_ws/src/ros2/rmw_cyclonedds/rmw_cyclonedds_cpp/src/rmw_node.cpp:1151: rmw_ret_t rmw_init(const rmw_init_options_t*, rmw_context_t*): Assertion 0 == std::memcmp(context, &zero_context, sizeof(rmw_context_t))' failed.

Additional information

It works fine if I checkout 0.7.4

[hidmic]

That assertion in rmw_node.cpp was removed in master by #208. We have to backport it.

[ivanpauno]

I really don't understand why #202 was backported, backporting that kind of things is likely to introduce a bug and doesn't have any real value.

[marcoag]

Working great now, thanks for the fix!